What is Answer Engine Optimization (AEO)?
SEO gets you ranked. AEO gets you named in the answer. Here is what changes when the search result is a paragraph instead of a list.
For twenty years, being found online meant ranking on a page of blue links. You optimized a page, earned some backlinks, and hoped to land in the top few results. Then the buyer clicked around, compared tabs and made up their own mind.
That is changing. More buyers ask an AI assistant a direct question, such as "what's the best tool for X?", and act on the answer they get. There is no list of ten options to browse, only a paragraph that either names you or doesn't.
So what is AEO?
Answer Engine Optimization is the work of getting your brand into AI-generated answers and getting it described correctly there. SEO aims for a ranking position. AEO aims for the answer itself: being mentioned, being recommended, and being described accurately when an assistant like ChatGPT, Gemini, Claude or Perplexity responds to a buying question.
Why it's different from SEO
Three things change. There is no click to measure, so if the answer skips you, analytics never shows a lost session. The answer is built from sources the model trusts, so the sites that cite you matter as much as your own pages. And accuracy starts to affect revenue: an assistant quoting last year's pricing can cost you a sale you never hear about.
One question, four different winners
Ask ChatGPT, Claude, Gemini and Perplexity the same buying question and you will often get four different shortlists. Each engine uses different sources and weighs them differently. Some search the live web, and others answer from what they learned in training. A brand can be the obvious pick on one engine and missing from another, so "I checked and we came up fine" tells you very little.
Why one check tells you almost nothing
Answers vary. Ask the same question twice and the wording, the order and sometimes the brands will change. From a single check you cannot tell a real pattern from noise. What you need is a rate, meaning how often you are named across many askings, and a rate needs a reasonable sample.
The margin is part of the number
If ten observations name you four times, your mention rate is 40%, but the true rate could be anywhere from about 17% to 69%. A hundred observations narrows that a lot. In practice, if you react to a five-point move that sits inside the margin, you are reacting to noise, and you may decide your work failed when it didn't, or worked when it didn't. A percentage shown without its margin leaves out what you need to make the call.
What AEO does not do
AEO will not get a weak product recommended. Engines build answers from what other people have published about you, so most of the work is making true things about your product easy to find, clearly stated and confirmed by other sources. If no credible source has anything good to say about you yet, start by earning that.
Where to start
Start by looking. Run the questions your buyers ask on the major engines, and for each answer note whether you were named, whether you were recommended or only listed, and which sources the engine used. Repeat it enough times for the numbers to mean something. Brand Climb produces that baseline in a free report with no account, and you can also do it by hand. Asking the same questions consistently matters more than which tool you use.